The Register of Wills did not abuse her discretion or commit an error of law in denying letters of administration to a principal creditor of the estate when the creditor had an ownership interest in property owned by the decedent which created a conflict of interest with other creditors and failed to disclose that interest, creating reasonable doubts about the ability of the petitioner to competently administer the estate and constituting “good cause” not to appoint him. Schwartz Estate, 11 Fid.Rep.3d 210 (Bucks O.C. 2021), aff’d, 275 A.3d 1032, 2022 PA Super 80 (5/5/2022).